Methods::
A retrospective analysis was performed on computerized rasterstereographyimages collected from 285 pairs of intact donor globes withno significant surface defects by Intraoperative fluorescein-basedRasterstereography Corneal Topography over six years in theCentral Ohio Lions Eye Bank (Columbus, Ohio). The eye bank technicianswere similarly instructed how to acquire images and there wasno monitoring of the data collected. Donor eyes were appliedwith 1 drop of sterile fluorescein and imaged in their openstorage cup. Technicians controlled the alignment, fluoresceincoverage, projected grid focus and total number of images collected.The raw rasterstereography images were archived with uniqueidentifiers. All eyes without at least 2 scans were included,and 2 scans were randomly chosen from those with greater than2 scans. The best fit sphere over 8-mm and the simulated steepand flat K meridians were recorded.